FR2404051A1 - GAS CEMENTATION PROCESS OF STEEL PARTS - Google Patents

GAS CEMENTATION PROCESS OF STEEL PARTS

Info

Publication number
FR2404051A1
FR2404051A1 FR7826757A FR7826757A FR2404051A1 FR 2404051 A1 FR2404051 A1 FR 2404051A1 FR 7826757 A FR7826757 A FR 7826757A FR 7826757 A FR7826757 A FR 7826757A FR 2404051 A1 FR2404051 A1 FR 2404051A1
Authority
FR
France
Prior art keywords
gas
steel parts
cementation process
parts
gas cementation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7826757A
Other languages
French (fr)
Other versions
FR2404051B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ipsen International GmbH
Original Assignee
Ipsen International GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ipsen International GmbH filed Critical Ipsen International GmbH
Publication of FR2404051A1 publication Critical patent/FR2404051A1/en
Application granted granted Critical
Publication of FR2404051B1 publication Critical patent/FR2404051B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/20—Carburising
    • C23C8/22—Carburising of ferrous surfaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
    • C21D3/02—Extraction of non-metals
    • C21D3/04—Decarburising
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/166—Selection of particular materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

Dans ce procédé de cémentation gazeuse des pièces en acier dans un four, qui est du type comportant une phase initiale dans laquelle on dissout dans la surface des pièces une quantité de carbone supérieure à la quantité finale désirée, tandis que, dans la phase finale, on ramène le taux de carbone à la valeur marginale désirée au moyen d'un gaz décarburant dont on règle le débit, l'opération de décarburation partielle s'effectue en introduisant dans la chambre du four exclusivement un gaz décarburant exempt d'hydrogène et contenant de l'oxygène, par exemple de l'air.In this process for gas carburizing steel parts in a furnace, which is of the type comprising an initial phase in which a quantity of carbon greater than the desired final quantity is dissolved in the surface of the parts, while, in the final phase, the carbon content is brought back to the desired marginal value by means of a decarburizing gas, the flow rate of which is adjusted, the partial decarburization operation is carried out by introducing into the furnace chamber exclusively a decarbelling gas free of hydrogen and containing oxygen, for example air.

FR7826757A 1977-09-22 1978-09-19 GAS CEMENTATION PROCESS OF STEEL PARTS Granted FR2404051A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1160877A CH632013A5 (en) 1977-09-22 1977-09-22 METHOD FOR GAS CARBONING WORKPIECE FROM STEEL.

Publications (2)

Publication Number Publication Date
FR2404051A1 true FR2404051A1 (en) 1979-04-20
FR2404051B1 FR2404051B1 (en) 1982-04-30

Family

ID=4375117

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7826757A Granted FR2404051A1 (en) 1977-09-22 1978-09-19 GAS CEMENTATION PROCESS OF STEEL PARTS

Country Status (9)

Country Link
US (1) US4201600A (en)
JP (1) JPS5454931A (en)
CH (1) CH632013A5 (en)
DD (1) DD138332A5 (en)
DE (1) DE2837272B2 (en)
ES (1) ES473545A1 (en)
FR (1) FR2404051A1 (en)
GB (1) GB2006832A (en)
IT (1) IT1098905B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2586258A1 (en) * 1985-08-14 1987-02-20 Air Liquide PROCESS FOR THE QUICK AND HOMOGENEOUS CEMENTATION OF A LOAD IN AN OVEN
EP0859067A1 (en) * 1997-02-18 1998-08-19 Dowa Mining Co., Ltd. Method and apparatus for controlling the atmosphere in a heat treatment furnace

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414043A (en) * 1982-01-22 1983-11-08 United States Steel Corporation Continuous decarburization annealing with recycle to convert carbon monoxide
JPS61117268A (en) * 1984-11-13 1986-06-04 Chugai Ro Kogyo Kaisha Ltd Vacuum carburization method of steel material parts
CA1227727A (en) * 1984-11-21 1987-10-06 Kaare Johnsen Method for finishing steel shapes with magnetite and product obtained therefrom
FR2586259B1 (en) * 1985-08-14 1987-10-30 Air Liquide QUICK CEMENTATION PROCESS IN A CONTINUOUS OVEN
SE466755B (en) * 1989-06-30 1992-03-30 Aga Ab PROCEDURE FOR COOLING OF STEEL WITH REDUCTION OF WATER CONTENT IN THE COATING LAYER
JP3301857B2 (en) * 1994-03-29 2002-07-15 マツダ株式会社 Carburizing method
US5663124A (en) * 1994-12-09 1997-09-02 Ford Global Technologies, Inc. Low alloy steel powder for plasma deposition having solid lubricant properties
DE10139620A1 (en) * 2001-08-11 2003-02-27 Bosch Gmbh Robert Fuel injection valve for internal combustion engines and a method for hardening the same
JP3884310B2 (en) * 2002-03-22 2007-02-21 愛三工業株式会社 Electromagnetic fuel injection valve
US20050016831A1 (en) * 2003-07-24 2005-01-27 Paganessi Joseph E. Generation of acetylene for on-site use in carburization and other processes
JP5233258B2 (en) * 2007-12-03 2013-07-10 アイシン精機株式会社 Method and apparatus for producing steel material having steel surface with controlled carbon concentration

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1768317A (en) * 1929-03-30 1930-06-24 Peoples Gas By Products Corp Process of carburizing iron or steel
US1932032A (en) * 1932-01-28 1933-10-24 Surface Combustion Corp Continuous carburizing process
DE632935C (en) * 1931-05-16 1936-07-16 Benno Schilde Maschb Akt Ges Process and device for surface carbonization of iron and steel
FR835931A (en) * 1938-03-30 1939-01-05 Process for the gas carburizing of steel parts
FR1039618A (en) * 1951-02-03 1953-10-08 Carbon carburizing processes and devices, at accelerated penetration rate
FR1164640A (en) * 1955-12-06 1958-10-13 Elino Ind Ofenbau Carl Hanf & Process for cementation, nitriding and carbonitriding of steel parts

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE22452E (en) 1944-03-07 Method of making powdered iron
US1100193A (en) * 1910-03-24 1914-06-16 Carnegie Steel Company Process of treating armor-plates.
US1076768A (en) * 1911-02-04 1913-10-28 William H Jones Process of treating steel and steel alloys.
US2170158A (en) * 1935-11-04 1939-08-22 Rennerfelt Ivar Method of decarbonizing a carbon holding metal, for instance pig iron
US2201181A (en) * 1936-10-19 1940-05-21 Kalling Bo Michael Sture Method of decarbonizing carbonholding iron without melting
US2827407A (en) * 1954-06-15 1958-03-18 Federal Mogul Corp Method of producing powdered steel products
US3313660A (en) * 1963-07-15 1967-04-11 Crucible Steel Co America Cutting articles and stock therefor and methods of making the same
LU71534A1 (en) * 1973-12-21 1975-06-17
US4030712A (en) * 1975-02-05 1977-06-21 Alco Standard Corporation Method and apparatus for circulating a heat treating gas

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1768317A (en) * 1929-03-30 1930-06-24 Peoples Gas By Products Corp Process of carburizing iron or steel
DE632935C (en) * 1931-05-16 1936-07-16 Benno Schilde Maschb Akt Ges Process and device for surface carbonization of iron and steel
US1932032A (en) * 1932-01-28 1933-10-24 Surface Combustion Corp Continuous carburizing process
FR835931A (en) * 1938-03-30 1939-01-05 Process for the gas carburizing of steel parts
FR1039618A (en) * 1951-02-03 1953-10-08 Carbon carburizing processes and devices, at accelerated penetration rate
FR1164640A (en) * 1955-12-06 1958-10-13 Elino Ind Ofenbau Carl Hanf & Process for cementation, nitriding and carbonitriding of steel parts

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2586258A1 (en) * 1985-08-14 1987-02-20 Air Liquide PROCESS FOR THE QUICK AND HOMOGENEOUS CEMENTATION OF A LOAD IN AN OVEN
EP0213011A1 (en) * 1985-08-14 1987-03-04 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for speedily and homogeneously carburizing a charge in a furnace
US4744839A (en) * 1985-08-14 1988-05-17 L'air Liquide Process for a rapid and homogeneous carburization of a charge in a furnace
EP0859067A1 (en) * 1997-02-18 1998-08-19 Dowa Mining Co., Ltd. Method and apparatus for controlling the atmosphere in a heat treatment furnace

Also Published As

Publication number Publication date
GB2006832A (en) 1979-05-10
DE2837272A1 (en) 1979-03-29
ES473545A1 (en) 1979-04-01
DE2837272B2 (en) 1980-06-04
FR2404051B1 (en) 1982-04-30
IT7827927A0 (en) 1978-09-21
US4201600A (en) 1980-05-06
JPS5454931A (en) 1979-05-01
IT1098905B (en) 1985-09-18
CH632013A5 (en) 1982-09-15
DD138332A5 (en) 1979-10-24

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Legal Events

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ST Notification of lapse